Question: 12g of Mg (at. mass 24) will react completely with acid to give [MNR 1985]
(a) One mole of H₂
(b) 1/2 mole of H₂
(c) 2/3 mole of O₂
(d) Both 1/2 mol of H₂ and 1/2 mol of O₂
Correct Answer: (b) 1/2 mole of H₂
![Question: 12g of Mg (at. mass 24) will react completely with acid to give [MNR 1985] (a) One mole of H₂ (b) 1/2 mole of H₂ (c) 2/3 mole of O₂ (d) Both 1/2 mol of H₂ and 1/2 mol of O₂](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBU3ecfcdplKFQ9Kfx4NKzze_ZJj_r9rrtcOhX6WaY7N8Z5b19uSs9ZfStUxdlJmasO9TwCkOl_bgfr9o7XbSBh0noGXC2IgtCllc4aWNTBmXLNMzsjOqUvYHKxl1wXGYmHhERWB_asHo60kwGKXXPm3diGx7vT8wzt9niDdRQ2cYjEl6cVw53Q3kT/s1920/12g%20of%20Mg%20(at.%20mass%2024)%20will%20react%20completely%20with%20acid%20to%20give%20%5BMNR%201985%5D.jpg "Question: 12g of Mg (at. mass 24) will react completely with acid to give [MNR 1985] (a) One mole of H₂ (b) 1/2 mole of H₂ (c) 2/3 mole of O₂ (d) Both 1/2 mol of H₂ and 1/2 mol of O₂")
12g of Mg (at. mass 24) will react completely with acid to give [MNR 1985]